Prediction and Prevention of Natural Disaster in East Asia (Indonesia and China)

1)在印度尼西亚的默拉皮火山，熔岩穹顶在几次小规模的破裂后发生了大规模的火山碎屑流，就像日本的温岑火山一样。这一事实证实了联合研究的必要性。2)万隆地区已经做了GPS测量的准备工作。3)对火山区泥石流发生的条件和布兰塔斯河系的泥沙径流和河流演变进行了实地调查和数据分析。4)在萨努尔海滩，巴厘岛建立了一个系统，常年观测几种海洋现象，并对珊瑚礁上的沿岸流进行了观测。5)现场调查了灾情和非构造措施。6)为了建立覆盖日本岛弧和中国大陆的地震构造模式，从该地区地震活动的物理机制和构造的角度，对这些地区近百年的地震活动资料进行了整理和分析。7)在中国塘上建成了用于微区划分的强震观测仪器。8)为开展上海地区城市地震危险性评估，中国安排了上海地区建筑物易损性评估的长周期微震观测和分析工作。9)中国福清池滑坡现场测量工作。10)研究了藏东中国冰川涌流泥石流的形成机制，制定了泥石流的仪器观测方案。

1) At the Merapi volcano, Indonesia, a large scale pyroclastic flow occurs after several small scale failures of the lava dome, as is the case of the Unzen volcano, Japan. This fact confirms the necessity of the joint research.2) Preparation of GPS survey has been done in Bandung area.3) Field investigation and the data analysis of the condition of occurrence of debris flow in the volcanic area and the sediment runoff and river evolution in the Brantas river system have been done.4) At the Sanur beach, Bali Island a system has been set to observe several maritime phenomena all year round and an observation of the littoral current on the coral reef has been performed.5) Field investigation of the situation of the disaster and the nonstructural measures for the disaster has been done.6) For the purpose of establishing a seismotectonic model covering the Japanese island arc and the continental China, the seismicity data from these regions for the past 100 years have been compiled and analyzed from the view point of the physical mechanism of seismic activities and tectonics of this region.7) Strong motion observation instrumentation for the purpose of microzonation was completed in Tangshang, China. Observation activity has started.8) For the purpose of urban seismic risk assessment of the Shanghai area, China, arrangements have been made for long-period microtremor observation and analysis for vulnerability assessment of buildings in the region.9) Site measurements have started on landslides at the Fua Ching Chi, China. Soil samples were obtained, and laboratory tests have been performed.10) Mechanism of glacier surge debris flow in eastern Tibet of China has been studied, and their instrumental observation plan has been established.